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Finding the Fourth Proportional to 14,575.84, 20,117.24 and 8,607.12

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Solution

The fourth proportional to 14,575.84, 20,117.24 and 8,607.12 is: 11,879.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,575.84 : 20,117.24 = 8,607.12 : x
  2. Step 2: Convert to fraction form
    14,575.84/20,117.24 = 8,607.12/x
  3. Step 3: Cross multiply
    14,575.84x = 20,117.24 × 8,607.12
  4. Step 4: Simplify right side
    14,575.84x = 173,151,498.75
  5. Step 5: Solve for x
    x = 173,151,498.75/14,575.84
  6. Step 6: Final answer
    x = 11,879.35

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.